PHP implements explore() function sample code-PHP Tutorial-php.cn

explode() function breaks up thestringinto an array. Returns an array of strings

Syntax

explode(separator,string,limit)

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Parameters	Description
separator	Required. Specifies where to split the string.
string	Required. The string to split.
limit	Optional. Specifies the number of array elements to be returned. Possible values: Greater than 0 - Returns an array containing up tolimitelements Less than 0 - Returns an array containing all but the last -limitelements 0 - Returns an array containing one element

Parameters

Description

separator

Required. Specifies where to split the string.

string

Required. The string to split.

limit

Optional. Specifies the number of array elements to be returned.

Possible values:

Greater than 0 - Returns an array containing up tolimitelements
Less than 0 - Returns an array containing all but the last -limitelements
0 - Returns an array containing one element

#Note: The "separator" parameter cannot be an empty string.

The sample code is as follows:

''); $len = strlen($str); $slen = strlen($seg); $_limit = 0; for($i=0; $i<$len; $i++){ if(substr($str,$i,$slen) == $seg ){ $_limit++; $i += $slen-1; continue; }else{ $_ret[$_limit] .= $str[$i]; } } if($limit < 0 ) $_ret = array_slice($_ret, 0 , $limit ); else{ $_ret = $limit >= count($_ret) ? $_ret : array_merge(array_slice($_ret, 0 , $limit-1 ), array(implode( $seg , array_slice($_ret,$limit-1)))); } return $_ret; } var_dump(myExplode("4",$str)); echo "
"; var_dump(explode("4",$str)); echo "
"; ?>

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Supports limit to be negative. . The delimiter isstring

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